Feedback: SQL Performance Best Practices - missing section on Bulk-update best practices

Page: https://cockroachlabs.com/docs/v25.2/performance-best-practices-overview.html

## What is the reason for your feedback?

[X] Missing the information I need

[ ] Too complicated

[ ] Out of date

[ ] Something is broken

[ ] Other

## Additional details

This page has sections on:

- Bulk-insert best practices
- Bulk-delete best practices

But it does not have a section on bulk-update best practices. This seems like a good idea for completeness.

Jira issue: DOC-13884